#include "FastLED.h"


// dvb for Jordan's Hexagram dj lighter-upper
// uses 198 WS2801 leds
// WHITE:DATA
// GREEN:CLOCK
// RED:POWER +5
// BLUE:GND 0

#define NUM_LEDS 200

// Data pin that led data will be written out over
#define DATA_PIN 6

// Clock pin only needed for SPI based chipsets when not using hardware SPI
#define CLOCK_PIN 7

// This is an array of leds.  One item for each led in your strip.
CRGB leds[NUM_LEDS];

// This function sets up the ledsand tells the controller about them
void setup() {
  // sanity check delay - allows reprogramming if accidently blowing power w/leds
    delay(2000);

  Serial.begin(115200);
  Serial.print("hello\n");
      FastLED.addLeds<WS2801, DATA_PIN, CLOCK_PIN, RGB>(leds, NUM_LEDS);

  for(int ix = 0; ix < NUM_LEDS; ix++)
    leds[ix] = CRGB::Black;


}

static const char zz[] = {
  0,1,2,3,4,5,6,7,8,9 , 0,1,2,3,4,5,6,7,8,9 , 0,1,2,3,4,5,6,7,8,9 , 0,1,2,3,4,5,6,7,8,9 , 
  0,1,2,3,4,5,6,7,8,9 , 0,1,2,3,4,5,6,7,8,9 , 0,1,2,3,4,5,6,7,8,9 , 0,1,2,3,4,5,6,7,8,9 , 
  0,1,2,3,4,5,6,7,8,9 , 0,1,2,3,4,5,6,7,8,9 , 0,1,2,3,4,5,6,7,8,9 , 0,1,2,3,4,5,6,7,8,9 , 
  0,1,2,3,4,5,6,7,8,9 , 0,1,2,3,4,5,6,7,8,9 , 0,1,2,3,4,5,6,7,8,9 , 0,1,2,3,4,5,6,7,8,9 , 
  0,1,2,3,4,5,6,7,8,9 , 0,1,2,3,4,5,6,7,8,9 , 0,1,2,3,4,5,6,7,8,9 , 0,1,2,3,4,5,6,7,8,9 , 
  };


void pf(const char *s, int x)
{
  Serial.print(s);
  Serial.print(x);
  Serial.print("\n\r");
}

int ticks = 0;
int k = 0;
float hue = 0;
void loop() 
{
  delay(10);
  ticks++;
  int ch = Serial.read();
  if(ch != -1)
    pf("ch is ", ch);
  
  int d = 0;
  switch(ch)
  {
    case '.':
      d = +1;  
    bump:
      k = (k + d + NUM_LEDS) % NUM_LEDS;
      pf("PIXEL: ", k);
      break;

      case ',':
      d = -1;
      goto bump;

      case '<':
      d = -10;
      goto bump;

      case '>':
      d = +10;
      goto bump;
  }

  for(int ix = 0; ix < NUM_LEDS; ix++)
    leds[ix] = CRGB::Black;

  leds[k] = CRGB(20,20,20);
    
  FastLED.show();
    
}